NAME

SYNOPSIS

DESCRIPTION

[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2008 defers to the ISO C
standard.

The isgreaterequal() macro shall determine whether its first argument is greater than or equal to its second argument.
The value of isgreaterequal(x, y) shall be equal to (x) >= (y); however, unlike
(x) >= (y), isgreaterequal(x, y) shall not raise the invalid floating-point
exception when x and y are unordered.

RETURN VALUE

ERRORS

No errors are defined.

The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

The relational and equality operators support the usual mathematical relationships between numeric values. For any ordered pair
of numeric values, exactly one of the relationships (less, greater, and equal) is true. Relational operators may raise the invalid
floating-point exception when argument values are NaNs. For a NaN and a numeric value, or for two NaNs, just the unordered
relationship is true. This macro is a quiet (non-floating-point exception raising) version of a relational operator. It facilitates
writing efficient code that accounts for NaNs without suffering the invalid floating-point exception. In the SYNOPSIS section,
real-floating indicates that the argument shall be an expression of real-floating type.